5 files changed, 12 insertions, 10 deletions
diff --git a/libs/libc/conv.c b/libs/libc/conv.c
index bb68d7b..668069c 100644
--- a/libs/libc/conv.c
+++ b/libs/libc/conv.c
@@ -123,7 +123,7 @@ char *conv_base(int value, char *result, int base, int is_signed)
 		return result;
 	}
 
-	char *ptr = result, *ptr1 = result, tmp_char;
+	char *ptr = result, *ptr1 = result;
 	int tmp_value;
 
 	do {
@@ -137,7 +137,7 @@ char *conv_base(int value, char *result, int base, int is_signed)
 		*ptr++ = '-';
 	*ptr-- = '\0';
 	while (ptr1 < ptr) {
-		tmp_char = *ptr;
+		char tmp_char = *ptr;
 		*ptr-- = *ptr1;
 		*ptr1++ = tmp_char;
 	}
diff --git a/libs/libc/inc/print.h b/libs/libc/inc/print.h
index 6d959c3..bc1b7b0 100644
--- a/libs/libc/inc/print.h
+++ b/libs/libc/inc/print.h
@@ -20,7 +20,7 @@ int viprintf(enum io_type io, const char *format, va_list ap) NONNULL;
 int fprintf(const char *path, const char *format, ...) NONNULL;
 int iprintf(enum io_type io, const char *format, ...) NONNULL;
 int log(const char *format, ...) NONNULL;
-void err(int code, const char *format, ...) NONNULL;
+NORETURN void err(int code, const char *format, ...) NONNULL;
 #else
 #include <proc.h>
 int print_prefix(void);
diff --git a/libs/libc/list.c b/libs/libc/list.c
index 53bfa08..bda9e20 100644
--- a/libs/libc/list.c
+++ b/libs/libc/list.c
@@ -22,11 +22,12 @@ void list_destroy(struct list *list)
 			break;
 		}
 		iterator = iterator->next;
-		free(iterator->prev);
+
+		if (iterator && iterator->prev)
+			free(iterator->prev);
 	}
-	list->head = NULL;
+	memset(list, 0, sizeof(*list));
 	free(list);
-	list = NULL;
 }
 
 static struct node *list_new_node(void)
diff --git a/libs/libc/sanitize.c b/libs/libc/sanitize.c
index d31c20c..00c9032 100644
--- a/libs/libc/sanitize.c
+++ b/libs/libc/sanitize.c
@@ -183,7 +183,7 @@ void __ubsan_handle_type_mismatch_v1(struct type_mismatch *data, u32 ptr)
 	};
 
 	struct source_location *loc = &data->location;
-	const char *msg = "";
+	const char *msg;
 	if (ptr == 0) {
 		msg = "null pointer";
 	} else if (data->alignment != 0 && is_aligned(ptr, data->alignment))
diff --git a/libs/libc/stack.c b/libs/libc/stack.c
index 6f16709..81c76a2 100644
--- a/libs/libc/stack.c
+++ b/libs/libc/stack.c
@@ -22,11 +22,12 @@ void stack_destroy(struct stack *stack)
 			break;
 		}
 		iterator = iterator->prev;
-		free(iterator->next);
+
+		if (iterator && iterator->prev)
+			free(iterator->prev);
 	}
-	stack->tail = NULL;
+	memset(stack, 0, sizeof(*stack));
 	free(stack);
-	stack = NULL;
 }
 
 static struct stack_node *stack_new_node(void)